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    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
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    <title>Document</title>
</head>

<body>
    <li>i am koa Sever</li>
    <div id="app"></div>
    <script src="https://code.jquery.com/jquery-3.3.1.min.js" integrity="sha256-FgpCb/KJQlLNfOu91ta32o/NMZxltwRo8QtmkMRdAu8=" crossorigin="anonymous"></script>
    <script>
        $(function() {
            $.ajax({
                type: "get",
                url: "http://127.0.0.1:3000/package.json",
                // data: "data",
                dataType: "json",
                success: function(response) {
                    app.innerHTML = JSON.stringify(response);
                }
            });
        });
    </script>
</body>

</html>